#!/usr/bin/env python
# -*- coding: utf-8 -*-

"""
demo function
"""

import sys


print("loading demo ")

def add(a, b):
    return a + b


def main(argv):
    if argv is None:
        print("No arguments")
    else:
        print("user args: %s" % argv)
    add(1, 1)


if __name__ == '__main__':
    print("run demo main method")
    main(sys.argv)
